The Nissan Path

I have actually searched for this, and I'm sure it's been covered, but I cannot seem to find much info on the forum about adjusting the speedometer for larger tires. I will only be going up to a 265/75r16 from the stock 265/70r16 (for now). It is only a 3.4% difference in size, which is only about 2 mph at 60. I would prefer it be accurate though. Do you have to change a gear in the transmission like on older cars with cable driven speedos? Is it something that a dealership or mechanic must do with the ECU? Should I just suck it up and deal with it? I know speedometers typically read a little faster than actual speed, so it may just be spot on now.

They can't be re-calibrated via the ECM like some other makes and they get their speed input from the ABS sensors, so looking for a different speedo pinion gear isn't going to work. Only thing I know you can use is a Hypertech 730106 In-Line Speedometer Calibrator Module.

https://www.amazon.com/Hypertech-730106 ... B001G9EDIE

It says it can calibrate for tires up to 54 inches! I don't feel like you can have tires that big on the road legally. Thanks smj but I'll probably just have to deal with the difference. Or perhaps if I could find an off-road version and pull the abs parts off to make it match?

EvilTheCat wrote:It says it can calibrate for tires up to 54 inches! I don't feel like you can have tires that big on the road legally. Thanks smj but I'll probably just have to deal with the difference. Or perhaps if I could find an off-road version and pull the abs parts off to make it match?

I believe the part that does the conversion is integral to the cluster, a.k.a. "integrated meter assy." The Hypertech calibrator is the easiest and most practical way to go. Just because it says it can calibrate up to 54 inches, it doesn't mean it can't handle tire sizes a lot smaller.

EvilTheCat wrote:It says it can calibrate for tires up to 54 inches! I don't feel like you can have tires that big on the road legally. Thanks smj but I'll probably just have to deal with the difference. Or perhaps if I could find an off-road version and pull the abs parts off to make it match?

What year? On my 2007, ALL models were calibrated to a 265/75/16 size tire, even though not all of them ran that size. If I were you, I would test the speedo using a GPS (or speed gun if you have any law enforcement friends).

Changed my 2010 Pathfinder S to 265-70-16 to get the speedometer right! 2010 models all came down the line calibrated to the 18" wheels of the Pathfinder LE so my speedometer always read about 74 to be doing 70 on the highway. Now it measures up right on the money.

The wheel size doesn't really mean anything compared to the overall diameter of the tire. There are a lot of cars where Nissan offers different wheel and tire sizes (Maximas are a good example) but they all have the same tire diameter, so the calibration remains unaffected if you change to a different trim's wheel so long as you keep the stock tire size of that specific wheel.